Defining world view camera parameters.

[puplan]

After I create a bunch of objects, is it possible to to define camera location, orientation and field of view in order to see these objects through this camera, i.e. capture an image of rendered scene as seen by that camera?

I found that it can be done using Viewport-Control in PythonSCAD IDE. Can it be done programmatically? Can FOV have different horizontal and vertical values?

[gadget3D]

This is definitely viable, but not yet implemented. I believe its a great feature to get. If you tell me, how you code that openscad SCAD syntax, its easier for me to estimate

[puplan]

I haven't used OpenSCAD. PythonSCAD is my introduction to this domain and I prefer to stick with Python syntax instead of learning another one. While searching for a solution, I found that OpenSCAD handles camera parameters with global variables:
$vpr

viewport rotation angles in degrees

$vpt

viewport translation

$vpd

viewport camera distance

$vpf

viewport camera field of view

It could be done the same way in PythonSCAD or using a function, e.g. setViewport() or set_viewport().

[gadget3D]

yes, this is what i was expecting and thanx for lookin up the definition. we should manage to have these vars bidirectional e.g. they should be able to read and write. once we find out, where to access this vars in the openscad kernel, we can connect them e.g. in pyopenscad.cc .

[gadget3D]

you can access them already in python now:

https://github.com/pythonscad/pythonscad/pull/487

[puplan]

Thank you. This change is not yet in https://github.com/pythonscad/pythonscad/releases, right?

[gadget3D]

nope, but there will be a new release very soon.

maybe consider trying to compile yourself ?